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Chapter 23 Test Bank Docx Aldehydes, Ketones, Substitution

Chapter 23: Aldehydes and Ketones: Nucleophilic Addition and α-Substitution Reactions

Test Bank

Type: matching question

Title: Chapter 23 Question 01

1) Match the given number of acidic hydrogen atoms to the following molecules A-E:

Section reference: 23.1

a. No mildly acidic hydrogen atoms = Molecule B

b. One acidic hydrogen atom = Molecule E

c. Two acidic hydrogen atoms = Molecule A

d. Three acidic hydrogen atoms = Molecule C

e. Four acidic hydrogen atoms = Molecule D

Type: multiple choice question

Title: Chapter 23 Question 02

2) What is the major product of the following reaction?

a. A

Section reference: 23.1

b. B

Section reference: 23.1

c. C

Section reference: 23.1

d. D

Section reference: 23.1

e. E

Section reference: 23.1

Type: multiple response question

Title: Chapter 23 Question 03

3) For the following reaction, pick out the products. Please select all that apply.

a. A

Section reference: 23.1

b. B

Section reference: 23.1

c. C

Section reference: 23.1

d. D

Section reference: 23.1

e. E

Section reference: 23.1

Type: multiple choice question

Title: Chapter 23 Question 04

4) Which of the following carbonyl-containing compounds, A-E, is the most electrophilic and least acidic?

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

e. E

Section reference: 23.2

Type: multiple choice question

Title: Chapter 23 Question 05

5) Which of the following carbonyl compounds, A-E, forms the least amount of hydrate in water?

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

e. E

Section reference: 23.2

Type: multiple choice question

Title: Chapter 23 Question 06

6) For the following reaction, deduce whether it is an oxidation, reduction or neither:

A chemical reaction shows P h single bond C H 2 single bond C O single bond C H 3, under O H C H 2 C H 2 O H and H C l it gives a five membered C 3 O 2 ring where the C atom between two O atoms is single bonded with C H 3 and C H 2 P h.

a. Oxidation

Section reference: 23.2

b. Reduction

Section reference: 23.2

c. Neither

Section reference: 23.2

Type: matching question

Title: Chapter 23 Question 07

7) For the following reaction, match the given products to the corresponding amines from which they were derived:

A chemical reaction shows C single bonded with two C H 3 molecules and double bonded with an O atom, plus amine gives a product.

Section reference: 23.2

a. EtNH₂ = imine

b. Et₂NH = enamine

c. Et₃N = no product, only starting materials recovered

Type: multiple choice question

Title: Chapter 23 Question 08

8) What is the major product of the following reaction?

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

Type: multiple choice question

Title: Chapter 23 Question 09

9) For the following reaction, pick out the most suitable reagents:

A chemical reaction shows P h single bond C H 2 single bond C H 2 single bond C O single bond C H 2 single bond M e, gives P h single bond C H 2 single bond C H 2 single bond C H (O H) single bond C H 2 single bond M e.

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

e. E

Section reference: 23.2

Type: multiple choice question

Title: Chapter 23 Question 10

10) For the following reaction, pick out the major product:

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

e. E

Section reference: 23.2

Type: multiple response question

Title: Chapter 23 Question 11

11) Which of the following reagents, A-E, are suitable reagents for the following transformation? Please select all that apply.

A chemical reaction shows C single bonded with P h and M e, and double bonded with an O atom, gives C single bonded with P h and M e, and double bonded with C H 2.

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

e. E

Section reference: 23.2

Type: multiple response question

Title: Chapter 23 Question 12

12) From the following reactions, A-D, pick out those which lead to the formation of 1-phenylethanol. Please select all that apply.

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

d. D

Section reference: 23.2

Type: matching question

Title: Chapter 23 Question 13

13) From the following sequence of reactions, match the reagents to steps 1-3:

A chemical reaction shows P h single bond C H double bond O, under step 1, gives C single bonded with P h, H, B u, and O H, under step 2, it gives C single bonded with P h and B u, and double bonded with an O atom, under step 3, it gives C single bonded with two H atoms, P h, and B u.

Section reference: 23.3

a. CrO₃/H₂SO₄ = Step 2

b. BuBr + Mg, then HCl/H₂O = Step 1

c. NH₂NH₂, then KOH/H₂O = Step 3

Type: multiple choice question

Title: Chapter 23 Question 14

14) What is the approximate equilibrium constant for this equilibrium process?

A chemical reaction shows C single bonded with two C H 3 molecules and double bonded with an O atom having p K subscript a end subscript equals 20, plus N a O H is equivalent to C single bonded with C H 3 and O N a, and double bonded with C H 2, plus H 2 O having p K subscript a end subscript equals 16.

a. 10^-0.8

Section reference: 23.3

b. 10^-1

Section reference: 23.3

c. 10^-1.25

Section reference: 23.3

d. 10^-2

Section reference: 23.3

e. 10^-4

Section reference: 23.3

Type: multiple choice question

Title: Chapter 23 Question 15

15) Which of the following enols, A-D, is the most stable?

a. A

Section reference: 23.3

b. B

Section reference: 23.3

c. C

Section reference: 23.3

d. D

Section reference: 23.3

Type: multiple choice question

Title: Chapter 23 Question 16

16) From the following carbonyl-containing molecules, A-E, pick out the one which has the greatest enol content:

a. A

Section reference: 23.3

b. B

Section reference: 23.3

c. C

Section reference: 23.3

d. D

Section reference: 23.3

e. E

Section reference: 23.3

Type: multiple choice question

Title: Chapter 23 Question 17

17) For the following reaction, pick out the most suitable reagent(s):

A chemical reaction shows C single bonded with two C H 3 molecules, and double bonded with an O atom, gives C H 3 single bond C O single bond C H 2 single bond B r.

a. A

Section reference: 23.3

b. B

Section reference: 23.3

c. C

Section reference: 23.3

d. D

Section reference: 23.3

e. E

Section reference: 23.3

Type: multiple choice question

Title: Chapter 23 Question 18

18) What is the major product of the following reaction?

a. A

Section reference: 23.3

b. B

Section reference: 23.3

c. C

Section reference: 23.3

d. D

Section reference: 23.3

e. E

Section reference: 23.3

Type: multiple choice question

Title: Chapter 23 Question 19

19) For the following reaction, pick out the major product:

a. A

Section reference: 23.4

b. B

Section reference: 23.4

c. C

Section reference: 23.4

d. D

Section reference: 23.4

e. E

Section reference: 23.4

Type: multiple choice question

Title: Chapter 23 Question 20

20) For the following aldol condensation, pick out the major product:

a. A

Section reference: 23.4

b. B

Section reference: 23.4

c. C

Section reference: 23.4

d. D

Section reference: 23.4

e. E

Section reference: 23.4

Type: multiple choice question

Title: Chapter 23 Question 21

21) Select the major product from the reaction shown.

a. A

Section reference: 23.4

b. B

Section reference: 23.4

Type: multiple choice question

Title: Chapter 23 Question 22

22) Select suitable reagents for this reaction.

a. CrO₃

Section reference: 23.2

b. LiAlH₄

Section reference: 23.2

c. H₂ and heat

Section reference: 23.2

Type: multiple choice question

Title: Chapter 23 Question 23

23) Select all of the following carbonyls will form an enolate ion on addition of base.

a. A

Section reference: 23.1

b. B

Section reference: 23.1

c. C

Section reference: 23.1

d. D

Section reference: 23.1

e. E

Section reference: 23.1

Type: multiple choice question

Title: Chapter 23 Question 24

24) A-C have varying electrophilicities at their carbonyl carbon. Select which will be the most electrophilic.

a. A

Section reference: 23.1

b. B

Section reference: 23.1

c. C

Section reference: 23.1

Type: multiple choice question

Title: Chapter 23 Question 25

25) This Grignard reagent (Me‑MgBr) is a nucleophilic carbon source. What is the expected major product from this reaction?

a. A

Section reference: 23.2

b. B

Section reference: 23.2

c. C

Section reference: 23.2

Document Information

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DOCX

Chapter Number:

Created Date:

Aug 21, 2025

Chapter Name:

Chapter 23 Aldehydes, Ketones, Substitution

Author:

Andrew Burrows

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